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GETTING CHARGED UP
G-TUBE includes a Micro USB power jack on the side (located
under the External Jack Cover). Below are two ways you can
charge G-TUBE.
1 Connect G-TUBE to a USB powered port on your computer or
laptop (PC/MAC) using the supplied USB charging cable.
2 You can also charge G-TUBE by connecting G-TUBE to a USB
power adaptor (not included) via the supplied USB charging cable.
NOTES: When fully charged, the G-TUBE battery will provide playback
time of more than 6 hours, based on volume level and type of music.
Approximate time to fully recharge the G-TUBE battery is 3.5 hours.
GET IN CONTROL
POWER ON / OFF
Press the POWER button to turn G-TUBE on and again to turn
G-TUBE off.
VOLUME CONTROLS
Increase or decrease the volume by using the + or – buttons.
G-TUBE will remember the volume setting when it is turned off.
CHANGING MODES
The default mode is" headphone out". To switch to "daisy chain"
mode from the default setting, press and hold + and – buttons and
the 3 LEDs will flash from the first one to the third one, to indicate
"headphone out" mode has swiched to "daisy chain" mode.
To return to the default "headphone out" mode, press and hold +
and – buttons and the 3 LEDs will flash from the third one to the
first one.
HEAPHONE MODE
Connect your earbuds or headphones to the Headphone jack on
G-TUBE and initiate playback for private listening.
DAISY CHAIN MODE
Connect another G-TUBE or additional external speaker with a
3.5mm Line-in cable （sold separately） to the Headphone jack
then change the input source to Daisy Chain mode and initiate
playback.
BLUETOOTH WIRELESS
You can stream audio to G-TUBE from up to 33' away using your
iPod, iPhone, iPad, Android, laptop, or other A2DP Bluetooth
enabled device.
1 With G-TUBE powered on, press the PAIR button to enter
Bluetooth mode, the Blue LED will begin to flash. If the last paired
Bluetooth device is powered on and within range with Bluetooth
turned on, the device will automatically reconnect with G-TUBE.
If you want to connect a different Bluetooth device, press and hold
the PAIR button for about two seconds, the Blue LED will begin to
flash indicating G-TUBE is in pairing mode and searching for
Bluetooth compatible devices.
2 Power on your Bluetooth compatible device, enable Bluetooth,
then search for Bluetooth devices. Select "G-TUBE" from the
available list.
3 The Blue LED on G-TUBE will change from flashing to solid,
indicating that your Bluetooth device is now connected to G-TUBE.
4 Press the PLAY/PAUSE button to begin streaming music. Press
again to pause. Double tapping will skip to next track and triple
tapping will skip back to the previous track.
MUSIC PLAYBACK
• Tap the PLAY button once while in Bluetooth mode to play or
pause the audio playback on your Bluetooth device.
• Tapping the PLAY button 2x repeatedly while in Bluetooth mode
will skip to the next track on your Bluetooth device.
• Tapping the PLAY button 3x repeatedly while in Bluetooth mode
will skip to the previous track on your Bluetooth device.
NOTES: For the best audio performance, turn the volume on your
Bluetooth device all the way up then adjust G-TUBE volume to a
comfortable listen level.
BLUETOOTH WIRELESS NOTES (con't): Once your Bluetooth device has been
paired with G-TUBE, it is simple to reconnect them. Make sure G-TUBE is
powered on and within range then simply select "G-TUBE" from the list on
your Bluetooth device.
G-TUBE can only play audio from one source at a time. If G-TUBE is
connected to a Line-in source, Bluetooth will not function. Simply unplug the
3.5mm Line-in audio cable or press the PAIR button to switch to Bluetooth
(if necessary, select "G-TUBE" on your Bluetooth device).
To reset the Bluetooth on G-TUBE, press and hold the PAIR button, this will
disconnect the currently paired Bluetooth device and clear the memory list.
G-TUBE will automatically turn off if not paired with a device after 15 minutes.
LINE-IN
Connect a 3.5mm Line-in cable （sold separately） from the Line-in
jack on G-TUBE to your audio device and initiate playback.
NOTES: For the best audio performance and minimal distortion, avoid
turning the volume on your external audio source all the way up.
If a Line-In cable is connected, G-TUBE will default to Line-in mode.
If the PAIR button is pressed while the 3.5mm Line-in cable is connected
to the Line-in jack, G-TUBE will switch to Bluetooth pairing mode.
To return to Line-in mode, simply reconnect a cable to the Line-in jack.
If no Line-in cable is connected to the Line-in jack, G-TUBE will default
to Bluetooth mode and begin searching for a Bluetooth pairing device.
IMPORTANT SAFETY NOTIFICATIONS
CAUTION
RISK OF ELECTRIC SHOCK
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE
COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED SERVICE PERSONNEL.
DANGEROUS VOLTAGE: The lightning flash with arrowhead symbol,
within an equilateral triangle is intended to alert the user to the presence
of uninsulated dangerous voltage within the product's enclosure that may
be of sufficient magnitude to constitute a risk of electric shock to persons.
ATTENTION: The exclamation point within an equilateral triangle is intended
to alert the user to the presence of important operating and maintenance
(servicing) instructions in the literature accompanying the appliance.
NOTE:
Any unapproved changes or modifications will void the warranty.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there is
no guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by turning
the equipment off and on, the user is encouraged to try to correct the interference by one or
more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected.
• Consult the dealer or an experienced radio/TV technician for help.
Compliance information: This device complies with Part 15 of the FCC Rules. Operation is
subject to the following two conditions: (1) this device may not cause harmful interference,
and (2) this device must accept any interference received, including interference that may
cause undesired operation.
Caution: Any changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate this equipment.
SAFETY PRECAUTIONS
a. Only use attachments / accessories specified by the manufacturer.
b. Please note the information printed underneath the unit.
c. Keep open flames, such as lighted candles, away from this unit.
d. Unplug this unit during lightning storms or when unused for long periods of time.
e. Use only the same or equivalent type batteries as there is a danger of explosion if the
incorrect batteries are used or they are installed incorrectly.
f. Do not expose the battery to flames or dispose of it in a fire.
g. Dispose of batteries properly according to environmental regulations.
G-Project is a registered trademark of Goodhatch, LLC
G-TUBE is distributed by Life Lab International LTD.
®
The Bluetooth
word mark and logos are registered trademarks
owned by Bluetooth SIG, Inc. and any use of such marks by
Life Lab International LTD. is under license.
Other trademarks and trade names are those of their respective owners.
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